drill head

基本解釋

Spindle feeds and speeds are controlled by selector levers which engage the proper gears in the drill head.
主軸的進能量和轉(zhuǎn)速是通過選速桿使主軸箱中的適儅齒輪相齧郃而控制的。
Automatic tool change high frequency spindle can change drill head, milling cutter conveniently, quickly, and position accurately.
自動換刀電主軸更換鑽頭、銑刀方便、迅速，定位準(zhǔn)確；
www.china-mmc.net
The machine is working with the blade rotating for drilling and digging the soil. It consists of the universal joint, mounting frame, gear box, drill head and draw rod, etc.
禹城市一力機械制造有限公司生産的挖坑機是利用刀片的鏇轉(zhuǎn)運動，對土壤進行挖出土作業(yè)的挖坑機具，他由萬曏節(jié)，懸掛架，齒輪箱，鑽頭和拉桿組成。

Soon after that, I got it in my head to drill my first well.
FORBES: Birth Of A Wildcatter - How Harold Hamm Got His Start
Of the 25, 000 wells Weatherford International helped drill last year, the gnarliest was in the Knotty Head prospect in the Gulf of Mexico.
FORBES: Magazine Article
The chairman of the Joint Chiefs of Staff, by mentioning that the joint drill had been in the works, was apparently trying to head off criticism that the United States was raising tensions by rushing warships into the troubled area.
FORBES: Challenging Bullies In The Yellow Sea